How can we find project ID

[IT Solutions]

Need find project ID please help me on this

[Nic Brough -Adaptavist-]

Look at the url, or the display of the project or any of the issues in it.  You will see the "ID" in several places.  If nothing else, the issues are keyed as <project identifier>-<sequence>

If by "ID" you do not mean the unique project identifier Jira expects us humans to use, then could you tell us what you mean by "id" or maybe explain why you want to "find" it, so we can be sure we are giving you the best answer?